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The M20 was partially blocked after a car overturned between J9 (Ashford) and J8 (Leeds) this morning.
The crash happened just before the Maidstone services on the London-bound carriageway at about 11.30am.
One person was said to have been injured in the crash.
All lanes have now reopened and congestion has cleared.
Listen to kmfm for the latest news and travel updates.